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Drawn arc welding

A connecting layer, connecting to technology, used in welding equipment, arc welding equipment, welding/welding/cutting items, etc., can solve problems such as not good repairs

Active Publication Date: 2013-10-23
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other methods may attempt to bond the stud to one of the workpieces in an attempt to repair the joint, but this may not be the desired good repair

Method used

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  • Drawn arc welding
  • Drawn arc welding

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Embodiment Construction

[0035] refer to figure 1 , the workpiece assembly 20 includes an upper workpiece 22 and a lower workpiece 24 . Adhesive coupling layer 26 and / or seal 26 are positioned between upper workpiece 22 and lower workpiece 24 and attach upper workpiece 22 to lower workpiece 24 to form joint 32 between upper workpiece 22 and lower workpiece 24 . The joining layer 26 provides some electrical insulation properties between the two workpieces 22 , 24 . The workpiece assembly 20 may also be constructed of workpieces 22 , 24 of laminated metal, such as steel with a non-conductive laminate layer for forming the link layer 26 . The bonding layer 26 provides sufficient electrical insulation to have a voltage drop greater than that of a plasma of the same length. For example, if a welding arc of about one centimeter has about twelve volts, then a tie layer of adhesive with tens of microns of thickness builds up a voltage drop of about one-tenth of a volt to keep the arc stable, and if desired...

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PUM

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Abstract

A drawn arc welding assembly and method for simultaneously welding a stud to a first workpiece and a second workpiece that are affixed together and have an electrically insulating joining layer between the workpieces. A pair of leads attach to the first workpiece and the second workpiece, with electrically opposite diodes connected between the leads and a power supply. The power supply also provides power to a stud. During welding, two arcs are simultaneously maintained between the stud and first workpiece and between the stud and second workpiece. The power supply may be chopped AC from a dual inverter power supply.

Description

technical field [0001] The present invention relates generally to drawn arc welding. Background technique [0002] When workpieces such as sheets of metal are attached together with an adhesive (thus forming a joint between two workpieces), there may be situations where, if there may be deviations in the adhesive joint, need to be repaired. To repair this misalignment, rivets or screws may be used to repair the joint. Other methods may attempt to bond the stud to one of the workpieces in an attempt to repair the joint, but this may not be the desired good repair. Contents of the invention [0003] One embodiment contemplates a drawn arc welding assembly for simultaneously welding a stud to a first work piece and a second work piece that are attached together and where the There is an electrically insulating joining layer between the first workpiece and the second workpiece, the first workpiece and the joining layer have a cavity extending therethrough, and the cavity al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/20
CPCB23K9/20B23K9/10B23K9/202B23K9/205B23K9/23B23K2103/172Y10T29/49968B23K2101/185B23K2103/04B23K2103/18
Inventor M.D.古格尔
Owner GM GLOBAL TECH OPERATIONS LLC